CA1227115A - Auxiliary seat assembly for use in vehicles - Google Patents
Auxiliary seat assembly for use in vehiclesInfo
- Publication number
- CA1227115A CA1227115A CA000454916A CA454916A CA1227115A CA 1227115 A CA1227115 A CA 1227115A CA 000454916 A CA000454916 A CA 000454916A CA 454916 A CA454916 A CA 454916A CA 1227115 A CA1227115 A CA 1227115A
- Authority
- CA
- Canada
- Prior art keywords
- seat cushion
- link
- seat
- vehicles
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C9/00—Stools for specified purposes
- A47C9/06—Wall stools ; Stools hingedly mounted against the wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/30—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats
- B60N2/3038—Cushion movements
- B60N2/3063—Cushion movements by composed movement
- B60N2/3065—Cushion movements by composed movement in a longitudinal-vertical plane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/30—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats
- B60N2/3088—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats characterised by the mechanical link
- B60N2/309—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats characterised by the mechanical link rods
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE:
An auxiliary seat assembly for use in vehi-cles, having a seat cushion which is pivotably mounted on a base installed on the floor at the rear or lateral portion of the vehicle's cab. The seat assembly comprises a first link having one end pivotably mounted at the lower portion of the base, the other end being pivotably secured to the rear side of the seat cushion, and a second link having one end pivotably mounted at the upper portion of the base, the other end being pivotably secured as spaced from said first link, to the rear side of the seat cushion.
The upper side of the seat cushion is directed frontward of the seat assembly when the seat cushion is turned to the upright position as the first and second links are turned.
An auxiliary seat assembly for use in vehi-cles, having a seat cushion which is pivotably mounted on a base installed on the floor at the rear or lateral portion of the vehicle's cab. The seat assembly comprises a first link having one end pivotably mounted at the lower portion of the base, the other end being pivotably secured to the rear side of the seat cushion, and a second link having one end pivotably mounted at the upper portion of the base, the other end being pivotably secured as spaced from said first link, to the rear side of the seat cushion.
The upper side of the seat cushion is directed frontward of the seat assembly when the seat cushion is turned to the upright position as the first and second links are turned.
Description
~2~711S
The present invention relates to an improved auxiliary seat assembly for use in vehicles, and more spew civically to an auxiliary seat assembly which is used as installed at the lateral or rear portion of the cab of a vehicle such as truck or the like.
Generally, there is provided in the cab of a vehicle such as truck an auxiliary seat assembly (will be referred to as "the seat" hereinafter) and it is used as follows. For example, in case two drivers ride in the lo cab of a truck on duty for a long-distance transport and they drive it in shifts day and night, one of them can take a nap or rest on the seat while the other is driving.
Heretofore, various many seats of such kind have been pro-posed. In a seat of the known type, when not in use, the seat cushion can be retained in upright posture for effect live utilization of the space in the truck cab. The seat cushion is pivot ably mounted on a pair of brackets install led on the floor at the rear or lateral portion of the cab. When using the seat, the seat cushion is swung out from the upright position and supported nearly horizon-tally by means of a pair of stays, so that one can seat himself on the seat cushion with the body panel used as a sea-t back.
As mentioned above, the seat cushion is pivot ably installed on the brackets installed on -the floor at the lateral or rear portion of the cab, and it can be turned to upright position when not used. However, when the seat cushion is turned to the upright position, the rear side thereof will be directed frontward and also the pivot mechanism and others under the seat cushion are whole lye visible, thus causing the cab interior to esthetically be degraded. Furthermore, the driver's body or his clothes may possibly be caught by any parts projecting from under the seat cushion, also causing a danger.
~227115 The present invention has a primary object to provide a seat for use in vehicles, which can be neatly folded.
The present invention has another object to provide a seat for use in vehicles, of which the mechanisms at the rear of the seat cushion will not be externally vise isle when the latter is folded, thus causing no danger in the cab of vehicles.
Therefore, according to the present invention, there is provided an auxiliary seat assembly for use in vehicles, having a seat cushion which is pivot ably mounted on a base installed on the floor at the rear or lateral portion of the vehicle's cab, comprising:
a first link having one end pivot able mounted at the lower portion of the base, the other end being pivot-ably secured to the rear side of the seat cushion;
a second link having one end pivot ably mounted at the upper portion of the base, the other end being pivot ably secured as spaced from said first link, to the rear side of the seat cushion, the upper side of the seat cushion being directed frontward of the seat assembly when said seat cushion is turned to the upright position as said first and second links are turned.
These and other objects and advantages of the present invention will be better understood from the ensuing description made by way of example of the embodiment of the inventive seat with reference to the drawings.
Figure 1 is a sectional view of a known con-ventional auxiliary seat assembly for use in vehicles;
Figure 2 is a sectional view of one embodiment of the inventive seat for use in vehicles;
Figure 3 is a perspective view of a part of the inventive seat shown in Figure 2;
~.~Z7~15 Figure 4 is an explanatory illustration showing the inventive seat being unfolded to the used position;
Figure 5 is also an explanatory drawing of the inventive seat in the used position;
Figure 6 is an exploded perspective view of another embodiment of the seat according to the present invention;
Figure 7 is a side elevation of the embodiment of Figure 6 in upright position; and Figure 8 is also a side elevation of the inventive seat of Figure 6 in the used position.
Figure l shows a known auxiliary seat assembly, wherein when the seat is not in use, the seat cushion 3 can be retained in upright posture for effective utilization of the space in the truck cab. The seat cushion 3 is pivot-ably mounted on a pair of brackets 7 installed on the floor 6 at the rear or lateral portion of the cab. When using the seat, the seat cushion 3 is swung out from the upright post-lion and supported nearly horizontally by means of a pair of stays 9, so that one can seat himself on the seat cushion 3 with the body panel 8 used as a seat back.
As mentioned above, the seat cushion 3 is pivotabbly installed on the brackets 7 installed on the floor 6 at the lateral or rear portion of the cab, and it can be turned -to upright position when not used. However, when the sea-t cushion 3 is turned to -the upright position, the rear side thereof will be directed frontward and also the pivot mechanism and others under the seat cushion 3 are wholly visible, thus causing the cab interior -to esthetically be degraded. Furthermore, the driver's body or his clothes may possibly be caught by any parts projecting from under the seat cushion 3, also causing a danger.
Figures 2 to 5 show the first embodiment of the inventive seat which is suitably usable as an auxiliary seat in vehicles such as truck or the like. Generally ~227~1~
speaking, in automobiles of this kind, the internal space of the cab is limited because the cab is isolated from the baggage room by a body panel 8. For effective use of the limited space of the cab, the seat is disposed, as an auxiliary seat on which the driver is to take a nap or rest, in the rear or lateral portion of the cab, and when the seat is not to be used, the seat cushion 10 can be turned to the upright position and retained there.
The seat is constructed as follows. It comprises a base 11 which is installed on the cab floor 6 of a vehicle as near to the body panel 8 as possible.
Provided between the base 11 and seat cushion 10 are a first and second links 12 and 13 which provide for a pivot mechanism of the seat cushion 10. The first link 12 is provided for turning the seat cushion 10 in the direction of the upright position. It is pivot ably secured at the one end thereof by means of a pin 16 to a bracket 14 fixed to the rear surface of the seat cushion 10, the other end being fixed to a leaf spring 17 fixed to the base 11.
On the other hand, the second link 13 has one end pivot ably secured by means of a pin 19 to a bracket 18 fixed to the rear surface of the seat cushion 10, and -the other end thereof ~2271~5 is pivot ably secured by means of a pin 20 to the top of the base 11, about which the seat cushion 10 is turned-Also a mechanism to retain the seat cushion 10 in horizontal and upright positions and a retaining mechanism of each link will be explained. First, there is provided a step-like stopper 21 formed at the upper portion of the base 11 to retain the sea-on link 13 horizontally when the seat is used. This stopper 21 blocks the second link 13 from pivoting downward from the horizontal position when the seat cushion 10 is applied with the weight of any one or anything. The mechanism of retaining the seat cushion horizontally when using the seat consists of a stopper 23, the top of the base 11, which is to stop the rear end of the seat cushion 10 from falling, and a hook mechanism 24 which comprises an engaging piece 26 provided at the rear end of the seat cushion 10 and a hook 26 pivot ably installed to a bracket 28 fixed to the top of the base 11. The hook 26 is so forced by a tension spring 27 so as to pivot toward the seat cushion 10. The pivoting of this hook 26 is limited by a stopper aye formed in the bracket 28 so that the hook 26 is retained in the upright position, Furthermore, the en-gaging piece 25 and hook 26 are so curved at their respective engaging portions as to easily be engaged with each other.
Therefore, when the seat cushion 10 is turned in the direction of arrow to a nearly horizontal position as shown in Fig. 4, the engaging piece 25 and hook 26 are automatically engaged with each other.
~227115 When the seat is not used, the first link 12 is retained the in/upright position by means of a stopper 30 formed, as protrude Ed on the side face of the base 11. This stopper 30 is pro-voided to block the first link 12 from being turned as forced by the leaf spring 17 from the upright position toward the body panel 8 when the seat cushion 10 has been turned to the upright potion. The mechanism to retain the seat cushion in the upright position consists of an engaging member 31 installed on the rear surface of the seat cushion near the front end thereof, and an engaging pin 32 installed by means of a break-et aye at the intermediate portion of the first link it. The engaging member 31 is made of a leaf spring which is cylindric-ally shaped so as to have a nearly same diameter as that of the engaging pin 32, and it has the circumference partially opened. When the seat cushion 10 is turned to the upright position, the engaging member 21 abuts the engaging pin 32 which will be fitted into the engaging member 31, for thereby retaining the seat cushion 10 in the upright position as shown in Figure 2.
The reference numeral 33 indicates a lever which has the hook 26 to pivot against the force of the tension spring 27;
operating the lever 33 permits to disengage the hook 26 from the engaging piece 25 for making the seat cushion pivot.
The inventive seat is used as follows:
For raising the seat cushion 10 from the used position to the upright position, the lever 33 is turned in the direction of arrow M to disengage the engaging piece 25 from the hook 26.
12Z~
The first and second links 12 and 13 will be turned as forced by the leaf spring 17 in the direction of the upright position and awls the seat cushion 10 supported by the first and second links 12 and 13 be turned toward the upright position with the upper surface directed frontward. When the first link 12 is held in the upright position by the stopper 30, the engage in member 31 is engaged on the engaging pin 32. Thus the seat cushion 10 is retained in the upright position as shown in Figure 2. The upper surface of the seat cushion 10 can be directed frontward, namely, toward the center of the cab, while the pivot mechanisms for the first and second links 12 and 13, and the other are positioned at the back of the seat cushion 10;
thus the seat assembly will occupy only a small space in the cab. In other words, the free space in the cab will be large.
When using the seat (by changing the seat cushion's post-lion from the upright position shown in Figure 2 to the used position shown in Figure 5), the seat cushion 10 is pulled at the lower end thereof frontward to disengage the engaging member 21 from the engaging pin 32, and it is further turned in the direction of arrow T. The first and second links 12 and 13 will be turned in the direction of L against the force of the leaf spring 17. The seat cushion 10 will thus be positioned nearly horizontally as shown in Figure 4. By turning the seat cushion 10 further in the direction of arrow R, the engaging piece 25 at the rear end of the seat cushion 10 abuts the hook 26. Thus, the hook forced by the engaging piece 25 is moved against the pulling force of the tension spring 27 while the engaging piece 25 is fitted inside the inwardly-curved portion ~22711S
of the hook 26. Thus, the engaging piece 25 is engaged with the hook 26, which is shown in Figure 5. The rear end of the seat cushion 10 is secured due to the engagement between the engage in piece 25 and hook 26, while the second link 13 supporting the seat cushion 10 is prevented by the stopper 21 from being turned downward; therefore, the seat cushion 10 is held in the horizontal position (used position).
Next, the second embodiment of the inventive seat will be described below with reference to Figure 6.
The second embodiment of the inventive seat has an almost same construction as the first embodiment, except that the seat cushion is moved under the action of an elastic member from the upright to horizontal or used position and that a locking mechanism is formed at the rear surface of the seat cushion. More specifically, there are provided a first and second links 1 PA and 1 PA as a pivot mechanism between a tray-like cushion frame 1 OX of which a seat cushion 10 is compost Ed and a base 11 having an Shaped section. The first link AYE comprises a pair of links installed on the opposite sides, respectively, of the base 11. The first link 1 PA has one end fixed to a shaft 1 PA which is pivot ably mounted on a bracket AYE fixed at the rear surface of the cushion frame 1 OAT and the other end pivot ably mounted by means of a pin AYE to the lower portion of the base 11. Installed between the pin AYE
and the first link AYE is an elastic member AYE such as coil spring which always forces the first link 1 PA so as to pivot downward. On the other hand, the second link 1 PA is composed ~2Z7115 g of a flat plate provided at both the lateral sides with ribs formed by bending, and it has one end pivot ably installed to a shaft AYE mounted on said bracket AYE puerilely to the shaft AYE, the other end being pivot ably mounted at the upper portion of the base 11 by means of a pin 20.
Also a mechanism to keep the posture of the seat cushion 10 is provided at the rear of the cushion frame BOA. The ribs of the second link AYE have formed therein elongated holes 42, respectively, through which a shaft-like lock pin 41 is so penes treated as to be positioned at the front surface side of the second link AYE. Provided between the lock pin 41 and second link AYE are tension springs 43 which position the lock pin 41 at the rear end of the elongated holes 42. At the rear side of the cushion frame AYE in a position corresponding to the lock pin 41, there is provided a stop bracket AYE which has formed at the front ends of the opposite sides thereof depress sons in which the lock pin 44 is to be engaged. When the lock pin 41 is engaged in the depressions 44, the second link AYE will be fixed. A lever 45 is pivot ably installed at the rear side of the cushion frame BOA. The lever 45 has penes treated at the intermediate portion thereof a pin 47 which is fitted to a bracket 46 fixed to the rear surface of the cushion frame BOA, and it is pivot ably supported between the cushion frame AYE and bracket 46. Also, the lever has mounted at one end thereof a knob AYE, and at the other end a latch 48 which is positioned inside the stop bracket AYE. When the lock pin -- 1 o --41 is engaged at the opposite ends thereof in the depressions 44 of the stop bracket AYE, the latch 48 is positioned behind the lock pin 41. By operating the lever 45 to move the latch 48, the lock pin 41 will be disengaged from the depressions 44 of the stop bracket AYE. Also a bracket AYE is provided to limit the pivoting range of the lever 45.
A mechanism to retain the cushion frame BOA in the upright position is installed to the front end of the cushion frame loan and it is composed of an engaging member 31 made of leaf spring by bending and an engaging pin AYE provided in a position where it will abut the engaging member 31 of the second link AYE when the cushion frame AYE is in the upright position. Further, there are provided an E ring 49, washer 50 and a collar 51.
This second embodiment of the inventive seat functions in a nearly same manner as the first embodiment having been de-scribed in the foregoing with reference to Figures 2 to 5, ox-crept for the following:
When using the seat (changing the seat position from the upright to horizontal (used) position), the seat cushion 10 is pulled at the bottom end thereof frontward to disengage the engaging member 31 from the engaging pin AYE. Thus, the second and first links AYE and AYE become pivot able, and the first link AYE is turned down under the action of the elastic member AYE. Along with the pivoting of the first link AYE, the seat cushion 10 is turned to the horizontal position, the lock pin 41 of the second link AYE abuts the stop bracket AYE and it is guided by the bottom edge of the bracket AYE into the depress sons 44 thereof where it is engaged at the opposite ends; thus 122711~
"
the second link AYE is secured to the seat cushion 10 which will be retained in the horizontal position (Figure 8).
When the seat is not used (by changing the seat cushion position from the horizontal or used to upright position), the lever 45 is operated by the knob AYE to displace the latch 48.
When the lock 41 is thus extracted from the depressions 44 of the stop bracket AYE, the seat cushion 10 becomes pivot able.
By turning the seat cushion 10 upward to engage the engaging member 31 onto the engaging pin AYE again, the seat cushion 10 is fixed in the upright position.
The present invention is not limited to the aforementioned embodiments but can be embodied in many variations and modify-cations. In the embodiments having been described in the fore-going, a leaf spring is used as elastic member by way of ox-ample. However, the elastic member is not limited to a such leaf spring; a torsion bar may be used for the purpose. Also in the aforementioned embodiments of the present invention, the elastic member is interposed between the first link and base; however, it may be provided between the base and second link. Furthermore, it may be interposed both between the base and first link and between the base and second link.
As having been explained in the foregoing, the seat act cording to the present invention comprises a base installed on the floor of a cab at the rear or lateral portion thereof, a first link having one end pivot ably installed at the lower portion of the base, the other end being pivot ably installed on the rear side of a seat cushion, a second link having one 122~115 end pivot ably mounted at the upper portion of the base, the other end being pivot ably installed as spaced from the first link, at the rear side of the seat cushion, in which when the seat cushion is turned to the upright position along with the pivoting of the first and second links, the front side of the seat cushion is directed frontward. When the seat cushion is retained in the upright position, the upper surface of the seat cushion is directed frontward so that the links and the like at the back thereof are not visible, thus providing an esthetic improvement. Also, since the mechanisms such as links and others are not exposed outside, the user's body and clothes may not possibly be caught by them; therefore, the in-ventive seat is safely usable.
Furthermore, by providing such an arrangement that the seat cushion can be turned on or before the base, no space is required behind the base. So the base can be installed in a position as near the body panel of the cab as possible, for thereby permitting an effective utilization of the can interval space.
The present invention relates to an improved auxiliary seat assembly for use in vehicles, and more spew civically to an auxiliary seat assembly which is used as installed at the lateral or rear portion of the cab of a vehicle such as truck or the like.
Generally, there is provided in the cab of a vehicle such as truck an auxiliary seat assembly (will be referred to as "the seat" hereinafter) and it is used as follows. For example, in case two drivers ride in the lo cab of a truck on duty for a long-distance transport and they drive it in shifts day and night, one of them can take a nap or rest on the seat while the other is driving.
Heretofore, various many seats of such kind have been pro-posed. In a seat of the known type, when not in use, the seat cushion can be retained in upright posture for effect live utilization of the space in the truck cab. The seat cushion is pivot ably mounted on a pair of brackets install led on the floor at the rear or lateral portion of the cab. When using the seat, the seat cushion is swung out from the upright position and supported nearly horizon-tally by means of a pair of stays, so that one can seat himself on the seat cushion with the body panel used as a sea-t back.
As mentioned above, the seat cushion is pivot ably installed on the brackets installed on -the floor at the lateral or rear portion of the cab, and it can be turned to upright position when not used. However, when the seat cushion is turned to the upright position, the rear side thereof will be directed frontward and also the pivot mechanism and others under the seat cushion are whole lye visible, thus causing the cab interior to esthetically be degraded. Furthermore, the driver's body or his clothes may possibly be caught by any parts projecting from under the seat cushion, also causing a danger.
~227115 The present invention has a primary object to provide a seat for use in vehicles, which can be neatly folded.
The present invention has another object to provide a seat for use in vehicles, of which the mechanisms at the rear of the seat cushion will not be externally vise isle when the latter is folded, thus causing no danger in the cab of vehicles.
Therefore, according to the present invention, there is provided an auxiliary seat assembly for use in vehicles, having a seat cushion which is pivot ably mounted on a base installed on the floor at the rear or lateral portion of the vehicle's cab, comprising:
a first link having one end pivot able mounted at the lower portion of the base, the other end being pivot-ably secured to the rear side of the seat cushion;
a second link having one end pivot ably mounted at the upper portion of the base, the other end being pivot ably secured as spaced from said first link, to the rear side of the seat cushion, the upper side of the seat cushion being directed frontward of the seat assembly when said seat cushion is turned to the upright position as said first and second links are turned.
These and other objects and advantages of the present invention will be better understood from the ensuing description made by way of example of the embodiment of the inventive seat with reference to the drawings.
Figure 1 is a sectional view of a known con-ventional auxiliary seat assembly for use in vehicles;
Figure 2 is a sectional view of one embodiment of the inventive seat for use in vehicles;
Figure 3 is a perspective view of a part of the inventive seat shown in Figure 2;
~.~Z7~15 Figure 4 is an explanatory illustration showing the inventive seat being unfolded to the used position;
Figure 5 is also an explanatory drawing of the inventive seat in the used position;
Figure 6 is an exploded perspective view of another embodiment of the seat according to the present invention;
Figure 7 is a side elevation of the embodiment of Figure 6 in upright position; and Figure 8 is also a side elevation of the inventive seat of Figure 6 in the used position.
Figure l shows a known auxiliary seat assembly, wherein when the seat is not in use, the seat cushion 3 can be retained in upright posture for effective utilization of the space in the truck cab. The seat cushion 3 is pivot-ably mounted on a pair of brackets 7 installed on the floor 6 at the rear or lateral portion of the cab. When using the seat, the seat cushion 3 is swung out from the upright post-lion and supported nearly horizontally by means of a pair of stays 9, so that one can seat himself on the seat cushion 3 with the body panel 8 used as a seat back.
As mentioned above, the seat cushion 3 is pivotabbly installed on the brackets 7 installed on the floor 6 at the lateral or rear portion of the cab, and it can be turned -to upright position when not used. However, when the sea-t cushion 3 is turned to -the upright position, the rear side thereof will be directed frontward and also the pivot mechanism and others under the seat cushion 3 are wholly visible, thus causing the cab interior -to esthetically be degraded. Furthermore, the driver's body or his clothes may possibly be caught by any parts projecting from under the seat cushion 3, also causing a danger.
Figures 2 to 5 show the first embodiment of the inventive seat which is suitably usable as an auxiliary seat in vehicles such as truck or the like. Generally ~227~1~
speaking, in automobiles of this kind, the internal space of the cab is limited because the cab is isolated from the baggage room by a body panel 8. For effective use of the limited space of the cab, the seat is disposed, as an auxiliary seat on which the driver is to take a nap or rest, in the rear or lateral portion of the cab, and when the seat is not to be used, the seat cushion 10 can be turned to the upright position and retained there.
The seat is constructed as follows. It comprises a base 11 which is installed on the cab floor 6 of a vehicle as near to the body panel 8 as possible.
Provided between the base 11 and seat cushion 10 are a first and second links 12 and 13 which provide for a pivot mechanism of the seat cushion 10. The first link 12 is provided for turning the seat cushion 10 in the direction of the upright position. It is pivot ably secured at the one end thereof by means of a pin 16 to a bracket 14 fixed to the rear surface of the seat cushion 10, the other end being fixed to a leaf spring 17 fixed to the base 11.
On the other hand, the second link 13 has one end pivot ably secured by means of a pin 19 to a bracket 18 fixed to the rear surface of the seat cushion 10, and -the other end thereof ~2271~5 is pivot ably secured by means of a pin 20 to the top of the base 11, about which the seat cushion 10 is turned-Also a mechanism to retain the seat cushion 10 in horizontal and upright positions and a retaining mechanism of each link will be explained. First, there is provided a step-like stopper 21 formed at the upper portion of the base 11 to retain the sea-on link 13 horizontally when the seat is used. This stopper 21 blocks the second link 13 from pivoting downward from the horizontal position when the seat cushion 10 is applied with the weight of any one or anything. The mechanism of retaining the seat cushion horizontally when using the seat consists of a stopper 23, the top of the base 11, which is to stop the rear end of the seat cushion 10 from falling, and a hook mechanism 24 which comprises an engaging piece 26 provided at the rear end of the seat cushion 10 and a hook 26 pivot ably installed to a bracket 28 fixed to the top of the base 11. The hook 26 is so forced by a tension spring 27 so as to pivot toward the seat cushion 10. The pivoting of this hook 26 is limited by a stopper aye formed in the bracket 28 so that the hook 26 is retained in the upright position, Furthermore, the en-gaging piece 25 and hook 26 are so curved at their respective engaging portions as to easily be engaged with each other.
Therefore, when the seat cushion 10 is turned in the direction of arrow to a nearly horizontal position as shown in Fig. 4, the engaging piece 25 and hook 26 are automatically engaged with each other.
~227115 When the seat is not used, the first link 12 is retained the in/upright position by means of a stopper 30 formed, as protrude Ed on the side face of the base 11. This stopper 30 is pro-voided to block the first link 12 from being turned as forced by the leaf spring 17 from the upright position toward the body panel 8 when the seat cushion 10 has been turned to the upright potion. The mechanism to retain the seat cushion in the upright position consists of an engaging member 31 installed on the rear surface of the seat cushion near the front end thereof, and an engaging pin 32 installed by means of a break-et aye at the intermediate portion of the first link it. The engaging member 31 is made of a leaf spring which is cylindric-ally shaped so as to have a nearly same diameter as that of the engaging pin 32, and it has the circumference partially opened. When the seat cushion 10 is turned to the upright position, the engaging member 21 abuts the engaging pin 32 which will be fitted into the engaging member 31, for thereby retaining the seat cushion 10 in the upright position as shown in Figure 2.
The reference numeral 33 indicates a lever which has the hook 26 to pivot against the force of the tension spring 27;
operating the lever 33 permits to disengage the hook 26 from the engaging piece 25 for making the seat cushion pivot.
The inventive seat is used as follows:
For raising the seat cushion 10 from the used position to the upright position, the lever 33 is turned in the direction of arrow M to disengage the engaging piece 25 from the hook 26.
12Z~
The first and second links 12 and 13 will be turned as forced by the leaf spring 17 in the direction of the upright position and awls the seat cushion 10 supported by the first and second links 12 and 13 be turned toward the upright position with the upper surface directed frontward. When the first link 12 is held in the upright position by the stopper 30, the engage in member 31 is engaged on the engaging pin 32. Thus the seat cushion 10 is retained in the upright position as shown in Figure 2. The upper surface of the seat cushion 10 can be directed frontward, namely, toward the center of the cab, while the pivot mechanisms for the first and second links 12 and 13, and the other are positioned at the back of the seat cushion 10;
thus the seat assembly will occupy only a small space in the cab. In other words, the free space in the cab will be large.
When using the seat (by changing the seat cushion's post-lion from the upright position shown in Figure 2 to the used position shown in Figure 5), the seat cushion 10 is pulled at the lower end thereof frontward to disengage the engaging member 21 from the engaging pin 32, and it is further turned in the direction of arrow T. The first and second links 12 and 13 will be turned in the direction of L against the force of the leaf spring 17. The seat cushion 10 will thus be positioned nearly horizontally as shown in Figure 4. By turning the seat cushion 10 further in the direction of arrow R, the engaging piece 25 at the rear end of the seat cushion 10 abuts the hook 26. Thus, the hook forced by the engaging piece 25 is moved against the pulling force of the tension spring 27 while the engaging piece 25 is fitted inside the inwardly-curved portion ~22711S
of the hook 26. Thus, the engaging piece 25 is engaged with the hook 26, which is shown in Figure 5. The rear end of the seat cushion 10 is secured due to the engagement between the engage in piece 25 and hook 26, while the second link 13 supporting the seat cushion 10 is prevented by the stopper 21 from being turned downward; therefore, the seat cushion 10 is held in the horizontal position (used position).
Next, the second embodiment of the inventive seat will be described below with reference to Figure 6.
The second embodiment of the inventive seat has an almost same construction as the first embodiment, except that the seat cushion is moved under the action of an elastic member from the upright to horizontal or used position and that a locking mechanism is formed at the rear surface of the seat cushion. More specifically, there are provided a first and second links 1 PA and 1 PA as a pivot mechanism between a tray-like cushion frame 1 OX of which a seat cushion 10 is compost Ed and a base 11 having an Shaped section. The first link AYE comprises a pair of links installed on the opposite sides, respectively, of the base 11. The first link 1 PA has one end fixed to a shaft 1 PA which is pivot ably mounted on a bracket AYE fixed at the rear surface of the cushion frame 1 OAT and the other end pivot ably mounted by means of a pin AYE to the lower portion of the base 11. Installed between the pin AYE
and the first link AYE is an elastic member AYE such as coil spring which always forces the first link 1 PA so as to pivot downward. On the other hand, the second link 1 PA is composed ~2Z7115 g of a flat plate provided at both the lateral sides with ribs formed by bending, and it has one end pivot ably installed to a shaft AYE mounted on said bracket AYE puerilely to the shaft AYE, the other end being pivot ably mounted at the upper portion of the base 11 by means of a pin 20.
Also a mechanism to keep the posture of the seat cushion 10 is provided at the rear of the cushion frame BOA. The ribs of the second link AYE have formed therein elongated holes 42, respectively, through which a shaft-like lock pin 41 is so penes treated as to be positioned at the front surface side of the second link AYE. Provided between the lock pin 41 and second link AYE are tension springs 43 which position the lock pin 41 at the rear end of the elongated holes 42. At the rear side of the cushion frame AYE in a position corresponding to the lock pin 41, there is provided a stop bracket AYE which has formed at the front ends of the opposite sides thereof depress sons in which the lock pin 44 is to be engaged. When the lock pin 41 is engaged in the depressions 44, the second link AYE will be fixed. A lever 45 is pivot ably installed at the rear side of the cushion frame BOA. The lever 45 has penes treated at the intermediate portion thereof a pin 47 which is fitted to a bracket 46 fixed to the rear surface of the cushion frame BOA, and it is pivot ably supported between the cushion frame AYE and bracket 46. Also, the lever has mounted at one end thereof a knob AYE, and at the other end a latch 48 which is positioned inside the stop bracket AYE. When the lock pin -- 1 o --41 is engaged at the opposite ends thereof in the depressions 44 of the stop bracket AYE, the latch 48 is positioned behind the lock pin 41. By operating the lever 45 to move the latch 48, the lock pin 41 will be disengaged from the depressions 44 of the stop bracket AYE. Also a bracket AYE is provided to limit the pivoting range of the lever 45.
A mechanism to retain the cushion frame BOA in the upright position is installed to the front end of the cushion frame loan and it is composed of an engaging member 31 made of leaf spring by bending and an engaging pin AYE provided in a position where it will abut the engaging member 31 of the second link AYE when the cushion frame AYE is in the upright position. Further, there are provided an E ring 49, washer 50 and a collar 51.
This second embodiment of the inventive seat functions in a nearly same manner as the first embodiment having been de-scribed in the foregoing with reference to Figures 2 to 5, ox-crept for the following:
When using the seat (changing the seat position from the upright to horizontal (used) position), the seat cushion 10 is pulled at the bottom end thereof frontward to disengage the engaging member 31 from the engaging pin AYE. Thus, the second and first links AYE and AYE become pivot able, and the first link AYE is turned down under the action of the elastic member AYE. Along with the pivoting of the first link AYE, the seat cushion 10 is turned to the horizontal position, the lock pin 41 of the second link AYE abuts the stop bracket AYE and it is guided by the bottom edge of the bracket AYE into the depress sons 44 thereof where it is engaged at the opposite ends; thus 122711~
"
the second link AYE is secured to the seat cushion 10 which will be retained in the horizontal position (Figure 8).
When the seat is not used (by changing the seat cushion position from the horizontal or used to upright position), the lever 45 is operated by the knob AYE to displace the latch 48.
When the lock 41 is thus extracted from the depressions 44 of the stop bracket AYE, the seat cushion 10 becomes pivot able.
By turning the seat cushion 10 upward to engage the engaging member 31 onto the engaging pin AYE again, the seat cushion 10 is fixed in the upright position.
The present invention is not limited to the aforementioned embodiments but can be embodied in many variations and modify-cations. In the embodiments having been described in the fore-going, a leaf spring is used as elastic member by way of ox-ample. However, the elastic member is not limited to a such leaf spring; a torsion bar may be used for the purpose. Also in the aforementioned embodiments of the present invention, the elastic member is interposed between the first link and base; however, it may be provided between the base and second link. Furthermore, it may be interposed both between the base and first link and between the base and second link.
As having been explained in the foregoing, the seat act cording to the present invention comprises a base installed on the floor of a cab at the rear or lateral portion thereof, a first link having one end pivot ably installed at the lower portion of the base, the other end being pivot ably installed on the rear side of a seat cushion, a second link having one 122~115 end pivot ably mounted at the upper portion of the base, the other end being pivot ably installed as spaced from the first link, at the rear side of the seat cushion, in which when the seat cushion is turned to the upright position along with the pivoting of the first and second links, the front side of the seat cushion is directed frontward. When the seat cushion is retained in the upright position, the upper surface of the seat cushion is directed frontward so that the links and the like at the back thereof are not visible, thus providing an esthetic improvement. Also, since the mechanisms such as links and others are not exposed outside, the user's body and clothes may not possibly be caught by them; therefore, the in-ventive seat is safely usable.
Furthermore, by providing such an arrangement that the seat cushion can be turned on or before the base, no space is required behind the base. So the base can be installed in a position as near the body panel of the cab as possible, for thereby permitting an effective utilization of the can interval space.
Claims (9)
1. An auxiliary seat assembly for use in vehicles, having a seat cushion which is pivotably mounted on a base installed on the floor at the rear or lateral portion of the vehicle's cab, comprising:
a first link having one end pivotably mounted at the lower portion of the base, the other end being pivotably secured to the rear side of the seat cushion;
a second link having one end pivotably mounted at the upper portion of the base, the other end being pivotably secured as spaced from said first link, to the rear side of the seat cushion, the upper side of the seat cushion being directed front-of the seat assembly ward of the seat assembly when said seat cushion is turned to the upright position as said first and second links are turned.
a first link having one end pivotably mounted at the lower portion of the base, the other end being pivotably secured to the rear side of the seat cushion;
a second link having one end pivotably mounted at the upper portion of the base, the other end being pivotably secured as spaced from said first link, to the rear side of the seat cushion, the upper side of the seat cushion being directed front-of the seat assembly ward of the seat assembly when said seat cushion is turned to the upright position as said first and second links are turned.
2. An auxiliary seat assembly for use in vehicles as set forth in Claim 1, said seat cushion being pivotable on or before said base.
3. An auxiliary seat assembly for use in vehicles as set forth in Claim 1, in which an elastic member is interposed between said base and first link or second link or both to force said first or second link or both so as to always turn upward so that the seat cushion is automatically turned to the upright position.
4. An auxiliary seat assembly for use in vehicles as set forth in Claim 3, said elastic member being a leaf spring.
5. An auxiliary seat assembly for use in vehicles as set forth in Claim 3, said elastic member being a coil spring.
6. An auxiliary seat assembly for use in vehicles as set forth in Claim 1, in which when said seat cushion is set in the horizontal position, the rear end thereof can be fixed by means of a hook at the upper portion of said base.
7. An auxiliary seat assembly for use in vehicles as set forth in Claim 1, in which a stop bracket is provided at the rear side of said seat cushion and said second link is provided with a lock pin which is engaged woth said stop bracket so that when the seat cushion is set in the horizontal position, said lock pin is engaged with said stop bracket, resulting in the fixation of said seat cushion to said second link.
8. An auxiliary seat assembly for use in vehicles as set forth in Claim 1, in which an engaging member is provided at the front portion of said seat cushion and an engaging pin which is engaged with said engaging member is provided on said first link so that when the seat cushion is set in the upright position, the engaging member engages on said engaging pin, resulting in the fixation of the seat cushion to said first link.
9. An auxiliary seat assembly for use in vechiles as set forth in Claim 1, in which said seat cushion is provided at the front portion with an engaging member and an engaging pin which is engaged with said engaging member is provided on said second link, so that when the seat cushion is set in the up-right position, said engaging member engages on said engaging pin, resulting in the fixation of the seat cushion to said second link.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58-108058 | 1983-06-16 | ||
| JP58108058A JPS601033A (en) | 1983-06-16 | 1983-06-16 | Jump sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1227115A true CA1227115A (en) | 1987-09-22 |
Family
ID=14474838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000454916A Expired CA1227115A (en) | 1983-06-16 | 1984-05-23 | Auxiliary seat assembly for use in vehicles |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4639037A (en) |
| JP (1) | JPS601033A (en) |
| CA (1) | CA1227115A (en) |
| DE (1) | DE3420574A1 (en) |
| FR (1) | FR2548106B1 (en) |
| GB (1) | GB2141326B (en) |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4926783A (en) * | 1988-07-08 | 1990-05-22 | Outboard Marine Corporation | Recreational boat seat/sun deck |
| DE4134053C2 (en) * | 1991-10-15 | 1996-01-11 | Daimler Benz Ag | Vehicle seat |
| DE9315676U1 (en) * | 1993-10-14 | 1993-12-23 | Fuchs, Peter, 90518 Altdorf | Tilting console and driver's seat |
| US5454771A (en) * | 1994-07-07 | 1995-10-03 | Wilson-Hyde; Cynthia | Step aerobic platform |
| DE69508614T2 (en) * | 1994-12-03 | 1999-07-22 | Magna Seating Systems Ltd., Nottingham | FOLDABLE SEAT UNIT FOR VEHICLES |
| FR2738192B1 (en) * | 1995-09-01 | 1997-11-07 | Productions Sa B V | DEVICE FOR HOLDING AND GUIDING A SEAT SEAT |
| US5865710A (en) * | 1996-08-01 | 1999-02-02 | Wilson-Hyde; Cynthia | Step aerobic platform |
| US6527341B1 (en) * | 2000-06-16 | 2003-03-04 | Genmar Ip Llc | Hinge assembly for folding seat |
| WO2003022101A1 (en) * | 2001-09-10 | 2003-03-20 | American Seating Company | Vertically folding seat |
| FR2844501B1 (en) * | 2002-09-16 | 2005-06-24 | Beneteau Chantiers | FOLDING BENCH FOR BOATS |
| CA2454590C (en) * | 2003-01-06 | 2007-07-03 | Faurecia Automotive Seating Canada Limited | Stowable rear seat for vehicle passenger compartments |
| US6932409B2 (en) * | 2003-12-01 | 2005-08-23 | Lear Corporation | Vehicle seat having a fold and tumble support assembly |
| US7367616B2 (en) * | 2005-08-12 | 2008-05-06 | Triton Boat Company, L.P. | Folding boat seat |
| TWM355257U (en) * | 2008-10-17 | 2009-04-21 | Peterson Internat Corp | Auxiliary supporting apparatus for sitting and standing |
| US7976093B2 (en) * | 2008-12-22 | 2011-07-12 | Honda Motor Co., Ltd. | Cantilevered seat for a vehicle |
| EP2587965B1 (en) * | 2010-07-01 | 2015-07-29 | Johnson Controls Technology Company | Second row package |
| US8899684B2 (en) | 2010-07-01 | 2014-12-02 | Johnson Controls Techonology Company | Second row package |
| EP2502781B1 (en) * | 2011-03-21 | 2020-05-13 | DongGuan Prestige Sporting Products Co., Ltd. | Foldable seat rack |
| US9216671B2 (en) | 2011-03-31 | 2015-12-22 | Ts Tech Co., Ltd. | Vehicle seat flip-up mechanism and vehicle seat |
| US9101207B2 (en) | 2011-12-09 | 2015-08-11 | Impey Showers Ltd. | Foldable support mechanism |
| JP5767156B2 (en) * | 2012-04-24 | 2015-08-19 | 三菱自動車工業株式会社 | Vehicle seat device |
| FR3030390B1 (en) * | 2014-12-19 | 2017-11-24 | Nexter Systems | REMOVABLE SEAT |
| NO341467B1 (en) * | 2016-05-31 | 2017-11-20 | To3Design Torbjoern Oestrem | Elevation hinge |
| US9844272B1 (en) * | 2017-04-25 | 2017-12-19 | Seachrome Corporation | Lift assist systems and methods for adjustable seats |
| IT201700045536A1 (en) * | 2017-04-27 | 2018-10-27 | Nicola Golfari | FOLDABLE ARTICULATED STRUCTURE, PARTICULARLY FOR THE SUPPORT OF A SITTING OR A SUPPORTING PLAN. |
| KR102063138B1 (en) * | 2018-04-27 | 2020-01-08 | 주식회사 대유홀딩스 | Collapsible auxiliary seats for vehicle |
| KR102063137B1 (en) * | 2018-04-27 | 2020-01-08 | 주식회사 대유홀딩스 | Collapsible auxiliary seats for vehicle |
| CN114468641B (en) * | 2022-01-25 | 2023-03-24 | 深圳市华仕杰家居用品有限公司 | Folding foot support and cabinet |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA845573A (en) * | 1970-06-30 | E. Thoreson Robert | Tilt table | |
| DE98090C (en) * | ||||
| US1509863A (en) * | 1923-04-05 | 1924-09-30 | Automatic Seating Company | Automatic folding-seat device |
| FR627249A (en) * | 1927-05-30 | 1927-09-29 | Hallouin Et Demangeot | Removable and folding seat or folding seat or folding seat |
| GB333712A (en) * | 1930-04-16 | 1930-08-21 | T H Prosser And Sons Ltd | Improvements in or relating to pivoted flaps for furniture |
| GB349867A (en) * | 1930-09-11 | 1931-06-04 | James Ritchie Gray | An improved adjustable seat |
| GB472478A (en) * | 1936-03-20 | 1937-09-20 | Samuel Rowland Parkes | Improvements relating to tip up seat fittings |
| GB498318A (en) * | 1937-07-10 | 1939-01-06 | Harry Augustus Archer | Improvements in collapsible seats |
| GB525989A (en) * | 1939-03-04 | 1940-09-09 | Rowland Wilton Cox | Improvements relating to adjustable seats |
| FR941933A (en) * | 1947-02-18 | 1949-01-25 | Strapont | |
| US2636549A (en) * | 1947-07-18 | 1953-04-28 | Roscoe G Geller | Platform supporting mechanism |
| US3116091A (en) * | 1960-12-09 | 1963-12-31 | Pacific Seating Corp | Stadium seat |
| GB945429A (en) * | 1961-11-23 | 1963-12-23 | G D Peters & Co Ltd | Improvements in or relating to domestic ironing boards and the like |
| US3480324A (en) * | 1966-12-27 | 1969-11-25 | Fritzmeier Kg Georg | Sprung vehicle seats |
| FR1598820A (en) * | 1968-12-27 | 1970-07-06 | ||
| US3600033A (en) * | 1969-11-05 | 1971-08-17 | Lear Siegler Inc | Fold-up seat |
| GB1367621A (en) * | 1970-10-16 | 1974-09-18 | Fitzgerald P W | Folding furniture |
| US3873153A (en) * | 1973-08-14 | 1975-03-25 | Charles Mackintosh | Movable audience chair |
| US4052102A (en) * | 1976-05-24 | 1977-10-04 | Rosenthal Lester P | Folding seat assembly |
| NZ186239A (en) * | 1977-01-21 | 1981-10-19 | Sico Inc | Folding wall table |
| GB2025204B (en) * | 1978-06-19 | 1983-05-05 | Fitzgerald P W | Foldingfurniture |
-
1983
- 1983-06-16 JP JP58108058A patent/JPS601033A/en active Granted
-
1984
- 1984-05-16 US US06/610,713 patent/US4639037A/en not_active Expired - Fee Related
- 1984-05-17 GB GB08412566A patent/GB2141326B/en not_active Expired
- 1984-05-23 CA CA000454916A patent/CA1227115A/en not_active Expired
- 1984-06-01 DE DE19843420574 patent/DE3420574A1/en active Granted
- 1984-06-15 FR FR848409423A patent/FR2548106B1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB2141326B (en) | 1987-06-03 |
| DE3420574C2 (en) | 1993-07-15 |
| JPS601033A (en) | 1985-01-07 |
| GB8412566D0 (en) | 1984-06-20 |
| US4639037A (en) | 1987-01-27 |
| FR2548106B1 (en) | 1989-05-05 |
| DE3420574A1 (en) | 1984-12-20 |
| FR2548106A1 (en) | 1985-01-04 |
| JPS64253B2 (en) | 1989-01-05 |
| GB2141326A (en) | 1984-12-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |